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Murine Myocardial Infarction Model using Permanent Ligation of Left Anterior Descending Coronary Artery
Published on: August 16, 2019
Insights
Diagnosing inflammatory heart muscle diseases like myocarditis is challenging. Cardiac MRI aids suspicion, but endomyocardial biopsy is the gold standard for definitive diagnosis and guiding treatment.
Area of Science:
- Cardiology
- Pathology
- Infectious Diseases
Background:
- Inflammatory heart muscle diseases encompass myocarditis and inflammatory cardiomyopathy.
- Causes are diverse, including viral and non-infectious agents.
- Diagnosis presents challenges, often requiring advanced imaging and invasive procedures.
Purpose of the Study:
- To outline the diagnostic challenges and methods for inflammatory heart muscle diseases.
- To emphasize the role of cardiac magnetic resonance imaging and endomyocardial biopsy.
- To highlight the importance of biopsy in determining prognosis and treatment.
Main Methods:
- Clinical assessment and non-invasive diagnostics, notably cardiac magnetic resonance imaging.
- Histological and immunohistochemical examination of endomyocardial biopsy samples.
- Detection of infectious agents within myocardial tissue.
Main Results:
- Cardiac MRI is crucial for clinical suspicion.
- Endomyocardial biopsy provides definitive histological and immunohistochemical evidence of inflammation.
- Biopsy analysis allows for etiological and prognostic assessment.
Conclusions:
- Definitive diagnosis of inflammatory cardiomyopathy and myocarditis relies on endomyocardial biopsy.
- Biopsy findings guide prognosis, therapeutic timing, and specific treatment strategies.
- Accurate diagnosis through biopsy is essential for effective patient management.
Abstract:
Inflammatory diseases of the heart muscle include myocarditis and inflammatory cardiomyopathy, which is myocarditis associated with a heart muscle dysfunction. The causes of myocardial inflammatory disorders may be infectious, most commonly viral, as well as non-infectious. Diagnosing is difficult, the clinical suspicion of this diagnosis can be established based on clinical picture and non-invasive diagnostic methods, the most important of which is cardiac magnetic resonance imaging. The definitive diagnosis is based on histological and immunohistochemical evidence of inflammation directly from heart muscle samples. These can be obtained by endomyocardial biopsy which is also the gold standard of diagnosis. In addition to the demonstration of inflammatory changes, the exami-nation of biopsy specimens allows for specification of their character and the obtained tissue can also be exami-ned for presence of infectious agents in the myocardium. Based on the findings it is then possible to estimate the prognosis, set the timing of further therapeutic steps (especially device-based therapy) and, in some cases, admi-nister specific treatments.
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